INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
ENGLISH
Cordless Percussion-
Driver Drill
MODEL 8414D
MODEL 8434D
MODEL 8444D
005780
2
SPECIFICATIONS
• Due to our continuing programme of research and development, the specifications herein are subject to change
without notice.
• Note: Specifications may differ from country to country.
Symbols END001-1
The following show the symbols used for the tool. Be
sure that you understand their meaning before use.
..................Only for EU countries
Do not dispose of electric equipment
together with household waste mate-
rial!
In observance of European Directive
2002/96/EC on waste electric and
electronic equipment and its imple-
mentation in accordance with
national law, electric equipment that
have reached the end of their life
must be collected separately and
returned to an environmentally com-
patible recycling facility.
Intended use
The tool is intended for impact drilling in brick, concrete
and stone as well as for drilling without impact in wood,
metal, ceramic and plastic.
For Model 8414D
For European countries only
Noise and Vibration
The typical A-weighted noise levels are
sound pressure level: 86 dB (A)
sound power level: 99 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is 6 m/s2.
These values have been obtained according to
EN50260.
For Model 8434D
For European countries only
Noise and Vibration
The typical A-weighted noise levels are
sound pressure level: 86 dB (A)
sound power level: 99 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is 7 m/s2.
These values have been obtained according to
EN50260.
Model 8414D 8434D 8444D
Capacities
Concrete 13 mm 14 mm 16 mm
Steel 13 mm 13 mm 13 mm
Wood 45 mm 50 mm 65 mm
Wood screw 6 mm x 75 mm 6 mm x 75 mm 10 mm x 89 mm
Machine screw 6 mm 6 mm 6 mm
No load speed
(min-1)
High (3) 0 - 1,600 0- 1,700 0 - 1,700
Medium (2) 0 - 550 0 - 600 0 - 600
Low (1) 0 - 300 0 - 300 0 - 300
Blows per minute
(min-1)
High (3) 0 - 24,000 0 - 25,500 0 - 25,500
Medium (2) 0 - 8,250 0 - 9,000 0 - 9,000
Low (1) 0 - 4,500 0 - 4,500 0 - 4,500
Overall length 259 mm 259 mm 259 mm
Net weight 2.4 kg 2.5 kg 2.7 kg
Rated voltage D.C. 12 V D.C. 14.4 V D.C. 18 V
3
For Model 8444D
For European countries only
Noise and Vibration
The typical A-weighted noise levels are
sound pressure level: 86 dB (A)
sound power level: 99 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is 8 m/s2.
These values have been obtained according to
EN50260.
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product
is in compliance with the following standards of stand-
ardized documents, EN60745, EN55014 in accordance
with Council Directives, 89/336/EEC, 98/37/EC.
Yasuhiko Kanzaki CE 2004
Director
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes, Bucks MK15
8JD, ENGLAND
Responsible manufacturer:
Makita Corporation Anjo Aichi Japan
GENERAL SAFETY RULES GEA001-1
WARNING:
Read all instructions. Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury. The term “power tool” in all of the
warnings listed below refers to your mains-operated (corded) power tool or battery-
operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
Work area safety
1. Keep work area clean and well lit. Cluttered and
dark areas invite accidents.
2. Do not operate power tools in explosive atmos-
pheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
3. Keep children and bystanders away while oper-
ating a power tool. Distractions can cause you to
lose control.
Electrical safety
4. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
5. Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
6. Do not expose power tools to rain or wet condi-
tions. Water entering a power tool will increase the
risk of electric shock.
7. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords
increase the risk of electric shock.
8. When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of
electric shock.
Personal safety
9. Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the influence of drugs, alcohol or medication. A
moment of inattention while operating power tools
may result in serious personal injury.
4
10. Use safety equipment. Always wear eye protec-
tion. Safety equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protection used
for appropriate conditions will reduce personal inju-
ries.
11. Avoid accidental starting. Ensure the switch is
in the off-position before plugging in. Carrying
power tools with your finger on the switch or plug-
ging in power tools that have the switch on invites
accidents.
12. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.
13. Do not overreach. Keep proper footing and bal-
ance at all times. This enables better control of the
power tool in unexpected situations.
14. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes, jewellery
or long hair can be caught in moving parts.
15. If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
these devices can reduce dust-related hazards.
Power tool use and care
16. Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the rate
for which it was designed.
17. Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must be
repaired.
18. Disconnect the plug from the power source and/
or the battery pack from the power tool before
making any adjustments, changing accessories,
or storing power tools. Such preventive safety
measures reduce the risk of starting the power tool
accidentally.
19. Store idle power tools out of the reach of chil-
dren and do not allow persons unfamiliar with
the power tool or these instructions to operate
the power tool. Power tools are dangerous in the
hands of untrained users.
20. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and
any other condition that may affect the power
tools operation. If damaged, have the power tool
repaired before use. Many accidents are caused
by poorly maintained power tools.
21. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
22. Use the power tool, accessories and tool bits
etc. in accordance with these instructions and in
the manner intended for the particular type of
power tool, taking into account the working con-
ditions and the work to be performed. Use of the
power tool for operations different from those
intended could result in a hazardous situation.
Service
23. Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
- WARNING- To reduce the risk of injury, user must read instruction manual.
ADDITIONAL SAFETY RULES FOR POWER TOOL GEB003-1
DO NOT let comfort or familiarity with product (gained from repeated use)
replace strict adherence to hammer drill safety rules. If you use this power
tool unsafely or incorrectly, you can suffer serious personal injury.
1. Wear ear protectors with impact drills. Exposure
to noise can cause hearing loss.
2. Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
3. Hold power tools by insulated gripping surfaces
when performing an operation where the cutting
tool may contact hidden wiring or its own cord.
Contact with a “live” wire will make exposed metal
parts of the tool "live" and shock the operator.
4. Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
5. Hold the tool firmly with both hands.
6. Keep hands away from rotating parts.
7. Do not leave the tool running. Operate the tool
only when hand-held.
5
8. Do not touch the bit or the workpiece immedi-
ately after operation; they may be extremely hot
and could burn your skin.
9. Some material contains chemicals which may
be toxic. Take caution to prevent dust inhalation
and skin contact. Follow material supplier safety
data.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this instruction manual
may cause serious personal injury.
IMPORTANT SAFETY INSTRUCTIONS FOR
BATTERY CARTRIDGE ENC004-1
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using bat-
tery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4. If electrolyte gets into your eyes, rinse them out
with clear water and seek medical attention right
away. It may result in loss of your eyesight.
5. Always cover the battery terminals with the bat-
tery cover when the battery cartridge is not
used.
6. Do not short the battery cartridge:
(1) Do not touch the terminals with any con-
ductive material.
(2) Avoid storing battery cartridge in a con-
tainer with other metal objects such as
nails, coins, etc.
(3) Do not expose battery cartridge to water or
rain.
A battery short can cause a large current flow,
overheating, possible burns and even a break-
down.
7. Do not store the tool and battery cartridge in
locations where the temperature may reach or
exceed 50°C (122°F).
8. Do not incinerate the battery cartridge even if it
is severely damaged or is completely worn out.
The battery cartridge can explode in a fire.
9. Be careful not to drop or strike battery.
SAVE THESE INSTRUCTIONS
Tips for maintaining maximum battery life
1. Charge the battery cartridge before completely
discharged.
Always stop tool operation and charge the bat-
tery cartridge when you notice less tool power.
2. Never recharge a fully charged battery cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room tempera-
ture at 10°C - 40°C (50°F - 104°F). Let a hot bat-
tery cartridge cool down before charging it.
4. Charge the Nickel Metal Hydride battery car-
tridge when you do not use it for more than six
months.
6
FUNCTIONAL
DESCRIPTION CAUTION:
• Always be sure that the tool is switched off and the battery cartridge is
removed before adjusting or checking function on the tool.
Installing or removing battery cartridge
• Always switch off the tool before insertion or removal of the battery
cartridge.
• To remove the battery cartridge, withdraw it from the tool while pressing
the buttons on both sides of the cartridge.
• To insert the battery cartridge, align the tongue on the battery cartridge
with the groove in the housing and slip it into place. Always insert it all the
way until it locks in place with a little click. If not, it may accidentally fall
out of the tool, causing injury to you or someone around you.
• Do not use force when inserting the battery cartridge. If the cartridge
does not slide in easily, it is not being inserted correctly.
Switch action
CAUTION:
• Before inserting the battery cartridge into the tool, always check to see
that the switch trigger actuates properly and returns to the “OFF” position
when released.
To start the tool, simply pull the switch trigger. Tool speed is increased by
increasing pressure on the switch trigger. Release the switch trigger to stop.
Reversing switch action
This tool has a reversing switch to change the direction of rotation. Depress
the reversing switch lever from the “A” side for clockwise rotation or from the
“B” side for counterclockwise rotation.
When the reversing switch lever is in the neutral position, the switch trigger
cannot be pulled.
CAUTION:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a complete stop.
Changing the direction of rotation before the tool stops may damage the
tool.
• When not operating the tool, always set the reversing switch lever to the
neutral position.
1. Button
2. Battery cartridge
1
2
005769
1. Switch trigger
1
005770
1. Reversing switch lever
1
AB
005771
7
Speed change
This tool has a three-gear speed change lever. To change the speed, first
switch off the tool and then slide the speed change lever to the “1” position for
low speed, “2” position for medium speed or “3” position for high speed. Be
sure that the speed change lever is set to the correct position before operation.
Use the right speed for your job.
NOTE:
•When changing the position from “1” to “3” or from “3” to “1”, it may be a
little difficult to slide the speed change lever. At this time, switch on and
run the tool for a second at the “2” position, then stop the tool and slide to
your desired position.
CAUTION:
•Always set the speed change lever fully to the correct position. If you
operate the tool with the speed change lever positioned halfway between
the “1” position, “2” position and “3” position, the tool may be damaged.
•Do not use the speed change lever while the tool is running. The tool
may be damaged.
Selecting the action mode
This tool employs an action mode change lever. Select one of the three modes
suitable for your work needs by using this lever.
For rotation only, slide the lever so that it points toward the mark on the tool
body.
For rotation with hammering, slide the lever so that it points toward the
mark on the tool body.
For rotation with clutch, slide the lever so that the it points toward the mark
on the tool body.
NOTE:
•When changing the position from to , it may be a little difficult to
slide the mode change lever. At this time, switch on and run the tool for a
second at the position, then stop the tool and slide to your desired
position.
CAUTION:
•Always set the lever correctly to your desired mode mark. If you operate
the tool with the lever positioned halfway between the mode marks, the
tool may be damaged.
Adjusting the fastening torque
The fastening torque can be adjusted in 16 steps by turning the adjusting ring
so that its graduations are aligned with the arrow on the tool body. The fasten-
ing torque is minimum when the number 1 is aligned with the arrow, and maxi-
mum when the number 16 is aligned with the arrow.
Before actual operation, drive a trial screw into your material or a piece of
duplicate material to determine which torque level is required for a particular
application.
1. Speed change lever
1
005772
1. Action mode change lever
1
005781
1. Arrow
2. Adjusting ring
3. Graduations
1
2
3
005774
8
ASSEMBLY CAUTION:
•Always be sure that the tool is switched off and the battery cartridge is
removed before carrying out any work on the tool.
Installing side grip (auxiliary handle)
Always use the side grip to ensure operating safety.
Insert the side grip so that the protrusions on the grip base fit in between the
grooves on the tool barrel. Then tighten the grip by turning clockwise.
Installing or removing driver bit or drill bit
Turn the sleeve counterclockwise to open the chuck jaws. Place the bit in the
chuck as far as it will go. Turn the sleeve clockwise to tighten the chuck.
To remove the bit, turn the sleeve counterclockwise.
When not using the driver bit, keep it in the bit holders. Bits 45 mm long can be
kept there.
1. Steel band
2. Grip base
3. Side grip
4. Protrusion
5. Groove
1
2
3
4
5
005775
1. Sleeve
1
005776
1. Bit
2. Bit holder
1
2
005782
9
Adjustable depth rod
The adjustable depth rod is used to drill holes of uniform depth. Loosen the
clamp screw, set to desired position, then tighten the clamp screw.
OPERATION Hammer drilling operation
CAUTION:
•There is a tremendous and sudden twisting force exerted on the tool/bit
at the time of hole break-through, when the hole becomes clogged with
chips and particles, or when striking reinforcing rods embedded in the
concrete. Always use the side grip (auxiliary handle) and firmly hold the
tool by both side grip and switch handle during operations. Failure to do
so may result in the loss of control of the tool and potentially severe
injury.
First, slide the action mode change lever so that it points to the marking.
The adjusting ring can be aligned in any torque levels for this operation.
Be sure to use a tungsten-carbide tipped bit.
Position the bit at the desired location for the hole, then pull the switch trigger.
Do not force the tool. Light pressure gives best results. Keep the tool in posi-
tion and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes clogged with chips or
particles. Instead, run the tool at an idle, then remove the bit partially from the
hole. By repeating this several times, the hole will be cleaned out and normal
drilling may be resumed.
Blow-out bulb (optional accessory)
After drilling the hole, use the blow-out bulb to clean the dust out of the hole.
Screwdriving operation
First, slide the action mode change lever so that it points to the marking.
Adjust the adjusting ring to the proper torque level for your work. Then proceed
as follows.
Place the point of the driver bit in the screw head and apply pressure to the
tool. Start the tool slowly and then increase the speed gradually. Release the
switch trigger as soon as the clutch cuts in.
1. Depth rod
2. Clamp screw
1
2
005777
1. Blow-out bulb
1
002449
005778
10
NOTE:
•Make sure that the driver bit is inserted straight in the screw head, or the
screw and/or bit may be damaged.
•When driving wood screws, predrill pilot holes to make driving easier and
to prevent splitting of the workpiece. See the chart.
C00020
NOTE:
•If the tool is operated continuously until the battery cartridge has
discharged, allow the tool to rest for 15 minutes before proceeding with a
fresh battery.
Drilling operation
CAUTION:
•Pressing excessively on the tool will not speed up the drilling. In fact, this
excessive pressure will only serve to damage the tip of your bit, decrease
the tool performance and shorten the service life of the tool.
•There is a tremendous force exerted on the tool/bit at the time of hole
break through. Hold the tool firmly and exert care when the bit begins to
break through the workpiece.
•A stuck bit can be removed simply by setting the reversing switch to
reverse rotation in order to back out. However, the tool may back out
abruptly if you do not hold it firmly.
•Always secure small workpieces in a vise or similar hold-down device.
•If the tool is operated continuously until the battery cartridge has
discharged, allow the tool to rest for 15 minutes before proceeding with a
fresh battery.
First, slide the action mode change lever so that it points to the marking.
The adjusting ring can be aligned in any torque levels for this operation. Then
proceed as follows.
Drilling in wood
When drilling in wood, the best results are obtained with wood drills equipped
with a guide screw. The guide screw makes drilling easier by pulling the bit into
the workpiece.
Drilling in metal
To prevent the bit from slipping when starting a hole, make an indentation with
a center-punch and hammer at the point to be drilled. Place the point of the bit
in the indentation and start drilling.
Use a cutting lubricant when drilling metals. The exceptions are iron and brass
which should be drilled dry.
Nominal diameter of wood screw
(mm)
Recommended size of pilot hole
(mm)
3.1 2.0 - 2.2
3.5 2.2 - 2.5
3.8 2.5 - 2.8
4.5 2.9 - 3.2
4.8 3.1 - 3.4
5.1 3.3 - 3.6
5.5 3.6 - 3.9
5.8 4.0 - 4.2
6.1 4.2 - 4.4
11
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and the battery cartridge is
removed before attempting to perform inspection or maintenance.
Replacing carbon brushes
Remove and check the carbon brushes regularly. Replace when they wear
down to the limit mark. Keep the carbon brushes clean and free to slip in the
holders. Both carbon brushes should be replaced at the same time. Use only
identical carbon brushes.
Use a screwdriver to remove the brush holder caps. Take out the worn carbon
brushes, insert the new ones and secure the brush holder caps.
To maintain product SAFETY and RELIABILITY, repairs, any other mainte-
nance or adjustment should be performed by Makita Authorized or Factory
Service Centers, always using Makita replacement parts.
ACCESSORIES
CAUTION:
•These accessories or attachments are recommended for use with your Makita tool specified in this manual. The
use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding these accessories, ask your local Makita service center.
1. Limit mark
1
001145
1. Brush holder cap
2. Screwdriver
12
005779
•Drill bits
•Hammer drill bits
•Screw bits
•Blow-out bulb
•Safety goggles
•Various type of Makita genuine batteries and
chargers
•Grip assembly
•Depth rod
•Rubber pad assembly
•Wool bonnet
•Foam polishing pad
Makita Corporation Anjo, Aichi, Japan
884560B224
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
